EP1341401A3 - Induction heating apparatus - Google Patents

Induction heating apparatus Download PDF

Info

Publication number
EP1341401A3
EP1341401A3 EP03004514A EP03004514A EP1341401A3 EP 1341401 A3 EP1341401 A3 EP 1341401A3 EP 03004514 A EP03004514 A EP 03004514A EP 03004514 A EP03004514 A EP 03004514A EP 1341401 A3 EP1341401 A3 EP 1341401A3
Authority
EP
European Patent Office
Prior art keywords
time
switching device
turn
during
induction heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03004514A
Other languages
German (de)
French (fr)
Other versions
EP1341401A2 (en
EP1341401B1 (en
Inventor
Izuo Hirota
Atsushi Fujita
Takahiro Miyauchi
Takeshi Kitaizumi
Yuji Fujii
Kouji Niiyama
Hideki Omori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP1341401A2 publication Critical patent/EP1341401A2/en
Publication of EP1341401A3 publication Critical patent/EP1341401A3/en
Application granted granted Critical
Publication of EP1341401B1 publication Critical patent/EP1341401B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/04—Sources of current

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Inverter Devices (AREA)
  • Induction Heating Cooking Devices (AREA)
  • General Induction Heating (AREA)

Abstract

An induction heating apparatus can heat aluminum pot etc. with pot vibration noise being suppressed. During a turn-on time of second switching device 57, an energy is accumulated at choke coil 54, and at the same time a resonant current with a shorter period than the turn-on time of second switching device 57 or a driving time of first switching device 55 is generated at heating coil 59, so that during turn-off of second switching device 57, i.e., during on-time of first switching'device 55, the energy accumulated at choke coil 54 is transferred to second smoothing capacitor 62. And then the output power is supplied from smoothing capacitor 62 to heating coil 59, thereby reducing the pot vibration noise, which is caused by pulsating current of input voltage.
EP03004514A 2002-03-01 2003-02-28 Induction heating apparatus Expired - Fee Related EP1341401B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002056565 2002-03-01
JP2002056565A JP3884664B2 (en) 2002-03-01 2002-03-01 Induction heating device

Publications (3)

Publication Number Publication Date
EP1341401A2 EP1341401A2 (en) 2003-09-03
EP1341401A3 true EP1341401A3 (en) 2006-04-12
EP1341401B1 EP1341401B1 (en) 2008-08-20

Family

ID=27678602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03004514A Expired - Fee Related EP1341401B1 (en) 2002-03-01 2003-02-28 Induction heating apparatus

Country Status (8)

Country Link
US (1) US6770857B2 (en)
EP (1) EP1341401B1 (en)
JP (1) JP3884664B2 (en)
KR (1) KR100517447B1 (en)
CN (2) CN2618402Y (en)
DE (1) DE60322994D1 (en)
ES (1) ES2312675T3 (en)
HK (1) HK1056813A1 (en)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3835762B2 (en) * 2002-06-26 2006-10-18 三井造船株式会社 Induction heating device
US7022952B2 (en) * 2003-08-26 2006-04-04 General Electric Company Dual coil induction heating system
DE102004021217A1 (en) * 2004-04-29 2005-12-08 Ema Indutec Gmbh Method for controlling an inverter, in particular for generating active power for inductive heating
DE102005021888A1 (en) * 2005-05-04 2007-02-15 E.G.O. Elektro-Gerätebau GmbH Method and arrangement for power supply of a plurality of induction coils in an induction device
WO2006129795A1 (en) * 2005-06-02 2006-12-07 Matsushita Electric Industrial Co., Ltd. Induction heating apparatus
EP1895814B1 (en) * 2005-06-17 2010-08-18 Panasonic Corporation Induction heating apparatus
US8884197B2 (en) 2007-02-03 2014-11-11 Western Industries, Inc. Induction cook top with heat management system
US8872077B2 (en) * 2005-08-01 2014-10-28 Western Industries, Inc. Low profile induction cook top with heat management system
JP4492559B2 (en) * 2006-02-28 2010-06-30 パナソニック株式会社 Induction heating cooker
EP2020826B1 (en) * 2006-05-11 2013-03-27 Panasonic Corporation Induction heating cooker, induction heating cooking method, induction heating cooking program, resonance sound detection device, resonance sound detection method, and resonance sound detection program
JP4978059B2 (en) * 2006-05-31 2012-07-18 パナソニック株式会社 Induction heating device
US20090084776A1 (en) * 2007-10-02 2009-04-02 Chuan-Pan Huang Induction device for a humidifier
CN101848566B (en) * 2009-03-23 2013-02-20 台达电子工业股份有限公司 Heating device
ES2388028B1 (en) * 2010-03-03 2013-08-23 Bsh Electrodomésticos España, S.A. COOKING HOB WITH AT LEAST ONE COOKING AREA AND PROCEDURE TO OPERATE A COOKING HOB.
US20110279097A1 (en) * 2010-05-13 2011-11-17 David Wise System and method for using condition sensors/switches to change capacitance value
US8476562B2 (en) 2010-06-04 2013-07-02 Watlow Electric Manufacturing Company Inductive heater humidifier
US9554425B2 (en) 2011-12-06 2017-01-24 Panasonic Intellectual Property Management Co., Ltd. Induction heating device
USD694569S1 (en) 2011-12-30 2013-12-03 Western Industries, Inc. Cook top
US9777930B2 (en) 2012-06-05 2017-10-03 Western Industries, Inc. Downdraft that is telescoping
US9897329B2 (en) 2012-06-08 2018-02-20 Western Industries, Inc. Cooktop with downdraft ventilator
JP6920582B2 (en) * 2016-08-23 2021-08-18 パナソニックＩｐマネジメント株式会社 Induction heating device
KR101968553B1 (en) 2017-01-04 2019-04-12 엘지전자 주식회사 Induction heat cooking apparatus to implement wpt and pfc power converter
US20180233955A1 (en) * 2017-02-15 2018-08-16 Samsung Electro-Mechanics Co., Ltd. Wireless power transmitter
CN108523626A (en) * 2017-03-02 2018-09-14 佛山市顺德区美的电热电器制造有限公司 Electric cooking device and its inspection Pot devices and method
CN107858496B (en) * 2017-12-18 2023-09-08 常熟市龙腾滚动体制造有限公司 Steel bar heat treatment production line
KR102040221B1 (en) * 2017-12-20 2019-11-04 엘지전자 주식회사 Induction heating device having improved interference noise canceling function and power control function
KR102040219B1 (en) * 2018-01-03 2019-11-04 엘지전자 주식회사 Induction heating device having improved interference noise canceling function and power control function
KR102633797B1 (en) 2018-08-31 2024-02-06 엘지전자 주식회사 Induction heating type cooktop having improved usability
KR20200106784A (en) 2019-03-05 2020-09-15 엘지전자 주식회사 Induction heating type cooktop having improved usability
CN112449451B (en) * 2019-08-29 2023-03-21 台达电子工业股份有限公司 Induction cooker and operation method thereof
KR102201189B1 (en) * 2019-09-05 2021-01-08 엘지전자 주식회사 Induction heating device
KR20210078142A (en) 2019-12-18 2021-06-28 엘지전자 주식회사 Induction heating type cooktop for enabling high temperature detection
KR20210078138A (en) 2019-12-18 2021-06-28 엘지전자 주식회사 Induction heating type cooktop with reduced thermal deformation of thin layer
WO2021145702A1 (en) * 2020-01-16 2021-07-22 Samsung Electronics Co., Ltd. Induction heating apparatus and method of controlling the same
KR20210103201A (en) 2020-02-13 2021-08-23 엘지전자 주식회사 Induction heating type cooktop for heating various object
KR20210106071A (en) 2020-02-19 2021-08-30 엘지전자 주식회사 Induction heating type cooktop having improved usability
KR20210123041A (en) 2020-04-02 2021-10-13 엘지전자 주식회사 Induction heating type cooktop for heating object by using induction heating of thin film
KR20210123043A (en) 2020-04-02 2021-10-13 엘지전자 주식회사 Induction heating type cooktop with output control algorithm based on temperature of multiple components
KR20220120160A (en) * 2021-02-23 2022-08-30 엘지전자 주식회사 Induction heating type cooktop

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4820891A (en) * 1986-11-29 1989-04-11 Kabushiki Kaisha Toshiba Induction heated cooking apparatus
JPH01246783A (en) * 1988-03-29 1989-10-02 Toshiba Corp Electromagnetic cooking apparatus
JPH08148266A (en) * 1994-11-22 1996-06-07 Sanyo Electric Co Ltd Induction heating cooker
JP2001160484A (en) * 1999-12-02 2001-06-12 Matsushita Electric Ind Co Ltd Induction heating cooker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0612699B2 (en) * 1985-11-27 1994-02-16 株式会社東芝 Induction heating cooker
US6528770B1 (en) * 1999-04-09 2003-03-04 Jaeger Regulation Induction cooking hob with induction heaters having power supplied by generators
JP2001246783A (en) 2000-03-02 2001-09-11 Seiko Epson Corp Calibration method, calibration device, and recording medium with calibration control program recorded therein

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4820891A (en) * 1986-11-29 1989-04-11 Kabushiki Kaisha Toshiba Induction heated cooking apparatus
JPH01246783A (en) * 1988-03-29 1989-10-02 Toshiba Corp Electromagnetic cooking apparatus
JPH08148266A (en) * 1994-11-22 1996-06-07 Sanyo Electric Co Ltd Induction heating cooker
JP2001160484A (en) * 1999-12-02 2001-06-12 Matsushita Electric Ind Co Ltd Induction heating cooker

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 584 (E - 866) 22 December 1989 (1989-12-22) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10 31 October 1996 (1996-10-31) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 23 10 February 2001 (2001-02-10) *

Also Published As

Publication number Publication date
US6770857B2 (en) 2004-08-03
EP1341401A2 (en) 2003-09-03
ES2312675T3 (en) 2009-03-01
CN1443023A (en) 2003-09-17
KR100517447B1 (en) 2005-09-29
HK1056813A1 (en) 2004-02-27
JP3884664B2 (en) 2007-02-21
CN1262149C (en) 2006-06-28
JP2003257607A (en) 2003-09-12
US20030164373A1 (en) 2003-09-04
KR20030071638A (en) 2003-09-06
DE60322994D1 (en) 2008-10-02
EP1341401B1 (en) 2008-08-20
CN2618402Y (en) 2004-05-26

Similar Documents

Publication Publication Date Title
EP1341401A3 (en) Induction heating apparatus
JP5420910B2 (en) Power converter
KR900004448B1 (en) Switching power supply
CN109586575B (en) Virtual parametric high side MOSFET driver
JP6859034B2 (en) Circuits and methods for synchronous rectification in resonant transducers
GB2383203A (en) Switching power supply unit
JP2008544440A (en) Electronic ballast with flyback cat-ear power supply
EP1130753A2 (en) Switching power supply apparatus
US5835368A (en) Power-factor improvement converter
JP3821454B2 (en) Fluorescent lamp lighting device
RU2000124309A (en) PULSE POWER UNIT DIAGRAM
EP1441566A3 (en) Variable-frequency inverter microwave oven and method for controlling the same
EP0844728B1 (en) Forward converter
EP1014550A3 (en) An AC/DC converter
JP3665984B2 (en) Standby power saving switching power supply
JP2003259643A (en) Current resonance type soft switching power circuit
JP3496069B2 (en) AC-DC converter
JP4613585B2 (en) Induction heating device
JP4522957B2 (en) Switching power supply circuit
JP4304751B2 (en) Ringing choke converter with improved turn-on loss
JP4345209B2 (en) Induction heating cooker
US20230283193A1 (en) Method of controlling a switching converter and related induction cooktop
Okudaira et al. Adjustable Frequency Quasi-Resonant Inverter and The Basic Characteristics
JP2001339948A (en) Switching power circuit
JP2002354820A (en) Power converter

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

RIC1 Information provided on ipc code assigned before grant

Ipc: H05B 6/04 20060101AFI20030416BHEP

Ipc: H05B 6/06 20060101ALI20060223BHEP

17P Request for examination filed

Effective date: 20060530

AKX Designation fees paid

Designated state(s): DE ES FR GB IT NL

17Q First examination report despatched

Effective date: 20061128

GRAC Information related to communication of intention to grant a patent modified

Free format text: ORIGINAL CODE: EPIDOSCIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60322994

Country of ref document: DE

Date of ref document: 20081002

Kind code of ref document: P

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: PANASONIC CORPORATION

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: PANASONIC CORPORATION

Effective date: 20081119

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2312675

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20090525

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20140110

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20140212

Year of fee payment: 12

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20150901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150228

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20190227

Year of fee payment: 17

Ref country code: ES

Payment date: 20190304

Year of fee payment: 17

Ref country code: DE

Payment date: 20190212

Year of fee payment: 17

Ref country code: FR

Payment date: 20190111

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60322994

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200229

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200228

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200901

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20210707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200301